Update code.py

Change from using neopixel_spi to neopixel

Author: TheKitty

QT_Py_Bracelet/code.py

@@ -1,21 +1,15 @@
 # Demo code to generate an alternating color-gradient effect in
-# the QT Py LED cuff bracelet
+# the QT Py LED cuff bracelet LEDs.
 import time
 import board
-import neopixel_spi as neopixel
- 
+import neopixel
+
 # Total number of LEDs on both strips
 NUM_PIXELS = 14
- 
-# Using the neopixel_spi library because the LED strip signal uses the SPI bus. It
-#  would work just as well with the standard neopixel library. This particular code
-#  As written, this code doesnt require the faster speed of SPI, but it may prove useful
-#  if additional functionality is added, e.g. reading and responding to sensor inputs
-spi = board.SPI()
-pixels = neopixel.NeoPixel_SPI(
-    spi, NUM_PIXELS, pixel_order=neopixel.GRB, auto_write=False, brightness = 0.4
+
+pixels = neopixel.NeoPixel(board.MOSI, NUM_PIXELS, pixel_order=neopixel.GRB, auto_write=False, brightness = 0.4
 )
- 
+
 def wheel(pos):
     # Input a value 0 to 255 to get a color value.
     # The colours are a transition r - g - b - back to r.
@@ -32,32 +26,32 @@ def wheel(pos):
 # Scales a tuple by a fraction of 255
 def scale(tup, frac):
     return tuple((x*frac)//255 for x in tup)
- 
+
 # Sawtooth function with amplitude and period of 255
 def sawtooth(x):
     return int(2*(127.5 - abs((x % 255) - 127.5)))
- 
-#Hue value at the opposite side of the color wheel
+
+# Hue value at the opposite side of the color wheel
 def oppositeHue(x):
     return ((x + 128) % 256)
- 
-hueIndex = 0         #determines hue value (0->255)
-brightnessIndex = 0  #input to the sawtooth function for determining brightness (0->255)
-brightnessSpeed = 3  #bigger value = faster shifts in brightness n
- 
+
+hueIndex = 0         # determines hue value (0->255)
+brightnessIndex = 0  # input to the sawtooth function for determining brightness (0->255)
+brightnessSpeed = 3  # bigger value = faster shifts in brightness
+
 while True:
     bright = sawtooth(brightnessIndex)
 
-    #get RGB color from wheel function and scale it by the brightness
+    # get RGB color from wheel function and scale it by the brightness
     mainColor = scale(wheel(hueIndex),bright)
     oppColor = scale(wheel(oppositeHue(hueIndex)), 255 - bright)
- 
-    #hue and brightness alternate along each strip
+
+    # hue and brightness alternate along each strip
     for i in range(NUM_PIXELS//2):
         pixels[i*2] = mainColor
         pixels[i*2 + 1] = oppColor
     pixels.show()
 
-    #increment hue and brightness
+    # increment hue and brightness
     hueIndex = (hueIndex + 1) % 255        
     brightnessIndex = (brightnessIndex + brightnessSpeed) % 255